Combination boom, bucket, and spout distributing apparatus



Jan. 1,1929; 1,697,311 0. FROHMAN COMBINATION BOOM, BUCKET, AND SPOUTDISTRIBUTING APPARATUS Filed Jan. 13,. 1926 Patented Jan. 1, 1929.

uni stares;

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OF- MILWAUKEE,- WISCONSIN, A CORPORATION;

COMBINATION BOOT/1;, BUCKET, AND SPOUT; DISTRIBUTINGIAPPARA'BUS;

Application filed January 13, 1926., .S e ria1 No. 31,044, K

The primary aim of this invention-hasv been to provide meansby which aconcrete pavern of the type commonly used, for distributing concreteupon pavement subgrades,

may be adapted for use. forrsupplyingeconcrete for distribution intrenches upon forms.

located at' elevations much below that; on which the paver operates, asfor instance, sewer forms, and in other-ways where concrete has to bedelivered to a grade much below that at which the paving machine issupported.

A typical paving machine of the type referred to above is shown in ErichH. Lichtenbergs Patent, 1,411,217, issued March 28th, 1922, and in orderto enable such a machine to do the work just outlined, this inventionprovides a hopper and spout attachment adapted to be mountedupon theboom and bucket paving distributor to be supplied by the bucket whichcarries the mixed concrete from the mixer to the attachment feature, thelatter conveying the said concrete to the point of deposit at lowerelevation, when the distributing bucket dumps its contents into thehopper and spout attachment.

The invention involves primarily an attachment construction comprising asupport adapted to be secured to the boom of the aver sus ension meanscarried b said su port or holding a receiving hopper into which thepaver distributing bucket dumps, spouting provisions leading from saidhopper, and means for supporting the spouting provisions connected withthe boom and adapted for adjusting the spout device as required.

In the accompanying drawings:

Figure 1 is a view in elevation of a concrete paving machine equippedwith a hopper and spout attachment embodying the invention, theattachment means being shown as when operating in the trench in which asewer is being built, and the sewer forms being partly shown.

Figure 2 is a view in end elevation of the attachment apparatus ofFigure 1, the boom supporting means being illustrated in section and theview being taken about on the line indicated by the arrows in Figure 1.

Figure 3 is a slightly enlarged detail view bringing out more clearlythe roller mountzingof the cross piece whichis. attached to theboo-mandcarries themain parts of the attachment means.

The construction of the. paving machine which is illustrated initheldrawings is well; known tothoseversed in the artandmayg therefore bebriefly described. merely as om-v ven prising a suitable tractionsupportriaipon m which is mounted the miXerQB; and equipped with what is knownas the boom and bucket attachment for distributing purposes. Said boomand bucket attachment consists of the boom 1 supported by the raisingand lower mg cable means 2 and having the trolley 3 adapted to travelthereon and carrying the dlstributing bucket 4. The bucket 4 is adaptedto be automatically dumped by the use of suitable means acting upon thedoor 5. The attachment means of the present invention includes a crosspiece 6 mounted transversely of the boom 1 and preferably provided withsmall rollers 7 by which it is supported on the boom-for a certainamount of traveling movement in order to adjust it to operate at asuitable point in the length of the boom.

In order to positively and firmly hold the cross piece 6 againstmovement after it has been properly positioned near the outer endportion of the boom 1, there will preferably be provided U-bolts 8' thatspan the cross piece and pass downwards between the chan-' nels whichcomprise the boom 1. sponding lower ends of these U-bolts 8 will beattached to plates 9 adapted to clamp against the bottom portion of theboom 1 under the action of the nuts secured to the lower ends of thesaid bolts 8.

Opposite end portions of the cross piece 6 support hanger bars 10, thelower ends of which are suitably attached to the receiving hopper 11. Ifdesired, braces 12 may be provided between the bars 10 and outerportions Corre of the hopper 11 so as to prevent undue swaying ortilting of the hopper upon the bars 10'.

The hopper 11' is designed of fairly large capacity, preferably greaterthan the capacity of the bucket 4, and leading from the lower deliveryend of the hopper '11 is a distributing spoutdesignated 18 in Figure 1.Or, if desired, instead of the spout 13 of Figure 1, there may beprovided the flexible spouting 13, shown in Figure 2, the latter type'ofspouting'being well known and possessing certain advantages in practicaluse. In order to support the spout 13, or any equivalent chuting orspouting arrangement, a cable 14; leads upwards from the lower portionof the spout, islpassed, about a suitable block 15 attached to'the boom1, and from the block 15 the cable may be led ofi? to a stake or otheranchorage means to which it may be tied. The elevation of the spout 13may be readily Varied by pulling upward on the cable ll, or paying outthereon, as desired.

The operationof my invention is obvious, as it will be readily seen thatthe boom distributing bucket 4 is adapted to traverse the boom 1 in thecustomary way and may be dis charged into the hopper 11 at will, themixed concrete being directed to a suitable point of deposit,v as it"passes from the hopper 11 through thechute or spout 13.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States, is

In combination, a concrete paving machine, comprising, aportable'support, a boom and bucket distributing attachment carriedthereby, means for actuating the bucket to cause movement thereof alongthe boom, a cross piece movably mounted on the boom, suspension barsdepending from the endsof the cross piece, a hopper carried by saidsuspension bars, a delivery spout suspended -from said hopper, thehopper being located in a plane beneath that in which the distributingbucket of said distributor operates, and

clamping means separate from the bucket actuating means engaging aboutthe cross piece and boom for holding the former at different'positionsrelative to the support.

In testimony whereof I aflix my signature.

osoAR FROHMAN.

